b，c，d VitreoushumorCiliarymuscleRetinaRetinalarteriesCorneaand veinsCrystallinelensPupilAqueoushumorOpticIrisnerve2000 Thomson - Brooks Cole(a)The human eye can be approximated by a two-lens optical system. Light enters the eye and first travelsthrough the cornea and aqueous humor. The cornea and aqueous humor are sometimes called theaqueous lens. The aqueous lens of a sample eye has a focal length of 4.16666 cm. The iris blocks someof the light that travels through the aqueous lens. Next, light travels through the center of the crystallinelens and vitreous humor to the retina. The crystalline lens and the vitreous humor can be approximatedby one lens, called the crystalline lens, with a focal length that can change. For healthy eyes, thecrystalline lens is set 0.50000 cm behind the aqueous lens and can vary in focal length from 9.0000 cm to16.5000 cm. The retina acts as an image screen upon which real images are focused for processing bythe brain. The retina is 3.0000 cm behind the crystalline lens.a) Draw an optical diagram of the eye's lens system. Labeļ the positions of the aqueous lens, theayuesascrystalline lens and the retina.TretinaTetinaCrystalline Teb) When the muscles connected to the crystalline lens contract fully, its focal length is 16.5000 cm. Withthis focal length, how far away must an object be to form sharply focused images on the retina? (Note:this distance is called the far point of vision.)c) When the muscles connected to the crystalline lens relax, the focal length is 9.0000 cm. With this focallength, how close must an object be to form sharply focused images on the retina? (Note: this distance iscalled the near point of vision.)d) As people age, the crystalline lens hardens (a condition called presbyopia or "old-age" eyes) and canonly vary in focal length from 12 to 15.60 cm. Calculate range of vision (the new near point and far point)for this older eye.

b) Let f1 be the focal length of the lens and v1 denote the image distance (17.1 for the human eye).…

Crystalline e b) When the muscles connected to the crystalline lens contract fully, its focal length is 16.5000 cm. With this focal length, how far away must an object be to form sharply focused images on the retina? (Note: this distance is called the far point of vision.) c) When the muscles connected to the crystalline lens relax, the focal length is 9.0000 cm. With this focal length, how close must an object be to form sharply focused images on the retina? (Note: this distance is called the near point of vision.) d) As people age, the crystalline lens hardens (a condition called presbyopia or "old-age" eyes) and can only vary in focal length from 12 to 15.60 cm. Calculate range of vision (the new near point and far point) for this older eye.

Crystalline e b) When the muscles connected to the crystalline lens contract fully, its focal length is 16.5000 cm. With this focal length, how far away must an object be to form sharply focused images on the retina? (Note: this distance is called the far point of vision.) c) When the muscles connected to the crystalline lens relax, the focal length is 9.0000 cm. With this focal length, how close must an object be to form sharply focused images on the retina? (Note: this distance is called the near point of vision.) d) As people age, the crystalline lens hardens (a condition called presbyopia or "old-age" eyes) and can only vary in focal length from 12 to 15.60 cm. Calculate range of vision (the new near point and far point) for this older eye.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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